Garmin AOA System Owner's Manual
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Garmin AOA System Owner's Manual

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AOA System
Owner's Manual

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  • Page 1 AOA System Owner’s Manual...
  • Page 2 Garmin (Europe) Ltd., Liberty House, Bulls Copse Road, Hounsdown Business Park, Southampton, SO40 9RB, U.K. Tel. +44 (0) 870 850 1243 Fax +44 (0) 238 052 4004 Garmin Corporation, No. 68, Zhangshu 2nd Road, Xizhi Dist., New Taipei City 221, Taiwan (R.O.C.) Tel: 886/02.2642.9199 Fax: 886/02.2642.9099 www.garmin.com https://fly.garmin.com/fly-garmin...

  • Page 3: Limited Warranty

    Garmin Authorized Service Center; and 90 days for factory repaired or newly-overhauled products exchanged at Garmin in lieu of repair. Within the applicable period, Garmin will, at its sole option, repair or replace any Components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost.
  • Page 4 Kingdom, the United States, Canada, or Taiwan for service. To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance in locating a Service Center near you, visit the Garmin web site at http://www.garmin.com or contact Garmin Customer Service at 866-739-5687.
  • Page 5 NOTE: This AOA System is non-required and is to be used only as supplemental information to the pilot. This AOA System is not to be used or substituted for a certified stall warning system. No operational credit may be taken for reduced approach speed and shorted landing distances.
  • Page 6 Record of Revisions Part Number Revision Date Description 190-01773-00 09/2014 Initial release...

  • Page 7: System Description

    AOA System OVERVIEW The Garmin AOA (Angle of Attack) System is designed to improve the pilot’ s awareness of the approximate available remaining lift of the aircraft’ s wings. The system calculates the approximate AOA (acute angle between the wing chord line and the relative wind) using pitot, AOA, and static air pressure inputs.
  • Page 8 GI 260 CONTROLS NOTE: The TEST and MUTE functions of the GI 260 are described in this manual. Refer to the AOA System Installation Manual for information on the CAL (calibration) and SET (alert volume) functions of the GI 260.
  • Page 9 Press the MUTE (SET) button to mute the GI 260 audible alert. When muted manually during normal operation, the audio alert is muted for at least 15 seconds and remains muted until the upper green bar illuminates for at least five seconds. AOA System Owner’s Manual 190-01773-00 Rev. A...

  • Page 10: Normal Operation

    Flight Manual (AFM) for recommended operational procedures. POWER-UP The AOA system is ON by default during power-up. During power-up, the unit cycles its annunciators from bottom to top and back to the bottom. For the unit to cycle its annunciators it must receive valid AOA data from the GSU 25, determine it has a valid calibration, and pass the unit self test.
  • Page 11 The first slow audible “Beep-Beep” alert is heard when the upper yellow chevron annunciator illuminates. A fast audible “Beep-Beep” alert is heard when the red Warning AOA annunciator illuminates. Warning AOA Caution Alert Approach AOA Approach AOA Reference Minimum Visible GI 260 Display AOA System Owner’s Manual 190-01773-00 Rev. A...
  • Page 12 APPROACH AOA REFERENCE NOTE: For information on calibrating the Approach AOA, refer to the calibration instructions in Appendix C of the AOA System Installation Manual. The Approach AOA Reference (green circle) and the adjacent green bar annuncia- tors should be calibrated to coincide with the published approach speed (if provided), or the speed upon crossing the runway threshold that is required in order to achieve calculated (or desired) aircraft landing performance.
  • Page 13 A high AOA approach is indicated by the illumination of the yellow Caution Alert AOA bar/chevron annunciators. A slow audible “Beep-Beep” alert coincides with illumination of the upper yellow chevron. Yellow Caution Alert  Beep - Beep Annunciators (Slow) Illuminate GI 260 (High AOA) AOA System Owner’s Manual 190-01773-00 Rev. A...
  • Page 14 (Fast) GI 260 (Warning AOA) EXAMPLE APPROACH WARNING: This AOA System is non-required and is to be used only as supplemental information to the pilot, and may not be used as a substitution for the certified aircraft stall warning system.
  • Page 15 AOA System The Approach AOA should be calibrated (refer to Appendix C of the AOA System Installation Manual) at an acceptable margin above CLmax to fly an approach. As a starting point, use the aircraft manual to determine the stall speed of the aircraft at the actual gross weight in the landing configuration.

  • Page 16: Abnormal Operation

    AOA System ABNORMAL OPERATION AOA SYSTEM FAILURE In the event that the GI 260 or the AOA system is malfunctioning, the unit can be powered-down by pulling the associated circuit breaker. NUISANCE ALERTS In the event that the AOA System is providing nuisance alerts, press the MUTE (SET) button to mute the GI 260 audible alerts.
  • Page 17 Hounsdown Business Park Southampton, SO40 9RB, U.K. Toll free (within U.K.) 0808.2380000 p: 44/0870.8501241 f: 44/0870.8501251 Garmin Corporation No. 68, Jangshu 2nd Road Shijr, Taipei County, Taiwan p: 886/2.2642.9199 f: 886/2.2642.9099 www.garmin.com 190-01773-00 Rev. A © 2014 Garmin Ltd. or its subsidiaries...

This manual is also suitable for:

Gsu 25Gi 260Gap 26

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